X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=plugin%2Fback.inc.php;h=76625e8341bc105470da41826b851b6d8a88f596;hb=0b74c719b1f4935da9688dad464207866b10b718;hp=201c720dcebba6b3207a4f324271be18f84bb786;hpb=db54803012d33536a32c6c48788c240dd1fb8cf3;p=pukiwiki%2Fpukiwiki.git

diff --git a/plugin/back.inc.php b/plugin/back.inc.php
index 201c720..76625e8 100644
--- a/plugin/back.inc.php
+++ b/plugin/back.inc.php
@@ -1,67 +1,73 @@
 <?php
-// $Id: back.inc.php,v 1.3 2003/03/17 00:29:33 panda Exp $
-/*
- * PukiWiki back ¥×¥é¥°¥¤¥ó
- * (C) 2002, Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
- *
- * [»ÈÍÑÎã]
- * #back(,,0)
- * #back(,left)
- * #back(,right,0)
- * #back(Ìá¤ë,center,0,http://localhost)
- *
- * [°ú¿ô]
- * 1 - ʸ¸À                  ¾Êά»þ:Ìá¤ë
- * 2 - left, center, right   ¾Êά»þ:center
- * 3 - <hr> ¥¿¥°¤Î̵ͭ       ¾Êά»þ:½ÐÎÏ
- * 4 - Ä̾ï¤Ï¡¢Ìá¤ë¤Ê¤ï¤±¤Ê¤ó¤Ç¤¹¤¬¡¢¤É¤¦¤·¤Æ¤â¤Î¾ì¹ç¤ÎÈô¤ÓÀè¤ò»ØÄê²Äǽ
- */
+// $Id: back.inc.php,v 1.10 2011/01/25 15:01:01 henoheno Exp $
+// Copyright (C)
+//   2003-2004 PukiWiki Developers Team
+//   2002      Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
+//
+// back plugin
 
-function plugin_back_init()
-{
-	$messages = array(
-		'_msg_back_word' => 'Ìá¤ë'
-	);
-	set_plugin_messages($messages);
-}
+// Allow specifying back link by page name and anchor, or
+// by relative or site-abusolute path
+define('PLUGIN_BACK_ALLOW_PAGELINK', PKWK_SAFE_MODE); // FALSE(Compat), TRUE
+
+// Allow JavaScript (Compat)
+define('PLUGIN_BACK_ALLOW_JAVASCRIPT', TRUE); // TRUE(Compat), FALSE, PKWK_ALLOW_JAVASCRIPT
 
+// ----
+define('PLUGIN_BACK_USAGE', '#back([text],[center|left|right][,0(no hr)[,Page-or-URI-to-back]])');
 function plugin_back_convert()
 {
-	global $_msg_back_word;
-	
-	$argv = func_get_args();
+	global $_msg_back_word, $script;
 
-	// ½é´üÃÍÀßÄê
-	$word  = $_msg_back_word;
-	$align = 'center';
-	$hr    = 1;
-	$href  = 'javascript:history.go(-1)';
-	$ret   = '';
+	if (func_num_args() > 4) return PLUGIN_BACK_USAGE;
+	list($word, $align, $hr, $href) = array_pad(func_get_args(), 4, '');
 
-	// ¥Ñ¥é¥á¡¼¥¿¤ÎȽÃÇ
-	if (func_num_args() > 0) {
-		$word = htmlspecialchars(trim(strip_tags($argv[0])));
-		if ($word == '') $word = $_msg_back_word;
-	}
-	if (func_num_args() > 1) {
-		$align = htmlspecialchars(trim(strip_tags($argv[1])));
-		if ($align == '') $align = 'center';
-	}
-	if (func_num_args() > 2) {
-		$hr = trim(strip_tags($argv[2]));
-	}
-	if (func_num_args() > 3) {
-		$href = rawurlencode(trim(strip_tags($argv[3])));
-		if ($href == '') $href = 'javascript:history.go(-1)';
-	}
+	$word = trim($word);
+	$word = ($word == '') ? $_msg_back_word : htmlsc($word);
 
-	// <hr> ¥¿¥°¤ò½ÐÎϤ¹¤ë¤«¤É¤¦¤«
-	if ($hr) {
-		$ret = "<hr class=\"full_hr\" />\n";
+	$align = strtolower(trim($align));
+	switch($align){
+	case ''      : $align = 'center';
+	               /*FALLTHROUGH*/
+	case 'center': /*FALLTHROUGH*/
+	case 'left'  : /*FALLTHROUGH*/
+	case 'right' : break;
+	default      : return PLUGIN_BACK_USAGE;
 	}
 
-	$ret.= "<div style=\"text-align:$align\">[ <a href=\"$href\">$word</a> ]</div>\n";
+	$hr = (trim($hr) != '0') ? '<hr class="full_hr" />' . "\n" : '';
 
-	return $ret;
+	$link = TRUE;
+	$href = trim($href);
+	if ($href != '') {
+		if (PLUGIN_BACK_ALLOW_PAGELINK) {
+			if (is_url($href)) {
+				$href = rawurlencode($href);
+			} else {
+				$array = anchor_explode($href);
+				$array[0] = rawurlencode($array[0]);
+				$array[1] = ($array[1] != '') ? '#' . rawurlencode($array[1]) : '';
+				$href = $script . '?' . $array[0] .  $array[1];
+				$link = is_page($array[0]);
+			}
+		} else {
+			$href = rawurlencode($href);
+		}
+	} else {
+		if (! PLUGIN_BACK_ALLOW_JAVASCRIPT)
+			return PLUGIN_BACK_USAGE . ': Set a page name or an URI';
+		$href  = 'javascript:history.go(-1)';
+	}
+
+	if($link){
+		// Normal link
+		return $hr . '<div style="text-align:' . $align . '">' .
+			'[ <a href="' . $href . '">' . $word . '</a> ]</div>' . "\n";
+	} else {
+		// Dangling link
+		return $hr . '<div style="text-align:' . $align . '">' .
+			'[ <span class="noexists">' . $word . '<a href="' . $href .
+			'">?</a></span> ]</div>' . "\n";
+	}
 }
 ?>